The Game of Thrones season seven finale was, arguably by all accounts, insane. One of the biggest moments to occur during the almost hour and a half long episode was Jamie Lannister finally breaking up with his twin sister and Queen of Westeros, Cersei.

However, for fans who think this was out of left field for the character, think again. In an interview with Making of Game of Thrones, Nikolaj Coster-Waldau, who has played Jamie Lannister since season one, is saying that this has been a long time coming. He then revealed that Cersei’s lies in the final episode is what drove Jamie away.

“That was it. That was the moment. She’s so cynical on a level that he doesn’t understand. You don’t give your word in front of the whole world and then just f**k ‘em. That’s too far. The fact is, yes there’s always been a lot of deceit, but Jaime is actually pretty straightforward when it comes to ‘walking the walk’ and all that. He’s thinking, “You commit to something, and you’ve just seen this thing is real, what the hell…?” She takes it to a place that he can’t follow her to.”

The actor then went on to say that the fact that Cersei does not care for Jamie the way the Kingslayer cares for her:

“She seems more or less willing to kill him, and he finally realizes that whatever he feels for her, it doesn’t go both ways. That whole thing of “We’re in this together,” well, we’re not quite in this together — because you’re not. We’re not playing the same game.”

He ended the interview by saying that Jamie leaving Cersei was something he had been looking forward to for quite some time:

“I’ve been waiting for this moment for a long time, I think that he’s seen her do crazy things before, but this is lying to everyone, and lying to him. You’ve got to go, ‘How much can this guy take before it becomes too much?’ It was a great scene to shoot.”

Where Jamie runs off to now is unclear but I would suspect that he’s riding to meet a certain mother of dragons. After all, the season clearly showed that Jamie and his younger brother Tyiron, who is Dany’s hand of the queen, still share some kind of bond. I guess we’ll just have to wait until season eight to see which side of the Great War Jamie lands on.